Dorsal lumbar extension brace with tensioning system

ABSTRACT

A spinal brace having a waist or abdominal portion, a dorsal lumbar insert, shoulder straps, and one or more cable tensioning systems that enables a user to tighten the waist or abdominal portion while at the same time tightening the shoulder straps to encourage extension.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority to U.S. Provisional Application Ser.No. 61/761,946 filed Feb. 7, 2013, entitled Dorsal Lumbar ExtensionBrace with Tensioning System, and to co-pending U.S. Ser. No. 14/169,600filed Jan. 31, 2014, entitled Dorsal Lumbar Extension Brace withTensioning System, incorporated by reference herein in their entireties.

FIELD

This disclosure relates to the field of orthopedic bracing. Moreparticularly, this disclosure relates to dorsal lumbar extension bracesincorporating cable reels or other tensioning systems that enableselective tensioning of the waist or abdominal portion of the bracewhile at the same time tensioning the shoulder straps to encourageextension in/of the brace.

BACKGROUND

Improvement is desired in the provision of braces. In particular, whatis desired is improvement in the tensioning of braces of the type havinga waist belt and shoulder straps.

The disclosure advantageously provides a spinal orthosis or brace havinga waist or abdominal portion, a dorsal lumbar extension, shoulderstraps, and one or more cable tensioning systems that enables a user totighten the waist or abdominal portion while at the same time tighteningthe shoulder straps.

Braces according to the disclosure advantageously enable a modularbracing system that fits a wide range of patient sizes to cut down oninventory needs, while at the same time is adjustable to enable thebrace to be configured to fit a wide variety of patient indications.

SUMMARY

The disclosure relates to spinal braces having a waist or abdominalportion, and one or more shoulder straps, with a cable that permitssimultaneous adjustment of the waist portion and the shoulder strap.

In one aspect, the spinal brace includes a waist portion configured forencircling and being adjustably tensionable about the waist of a user; adorsal lumbar extension extending from a rear portion of the waistportion; a shoulder strap positionable to extend over a shoulder of theuser and connectable to both the waist portion and the dorsal lumbarextension; a cable connectable to both the waist portion and theshoulder strap for tensioning the waist portion and the shoulder strap;and a cable tensioner operably associated with the cable to adjust thetension the cable. Adjustment of the tension of the cable simultaneouslyadjusts the tension of the waist portion of the brace about the waist ofthe user and the tension of the shoulder strap.

In another aspect, the spinal brace includes a waist portion configuredfor encircling and being adjustably tensionable about the waist of auser; a shoulder strap positionable to extend over a shoulder of theuser and connectable to the waist portion; a cable connectable to boththe waist portion and the shoulder strap for tensioning the waistportion and the shoulder strap; and a cable tensioner operablyassociated with the cable to adjust the tension the cable. Adjustment ofthe tension of the cable simultaneously adjusts the tension of the waistportion of the brace about the waist of the user and the tension of theshoulder strap.

In yet a further aspect, the spinal brace includes a waist portionconfigured for encircling and being adjustably tensionable about thewaist of a user, the waist portion including a posterior portion, ananterior portion, and first and second side members, each made of aconformable and flexible material. The first and second side members areeach releasably and adjustably connectable to the posterior member andthe anterior member to enable the formation of the waist portion in aconfiguration that will snugly encircle the waist of a user.

The spinal brace also includes a dorsal lumbar extension extending fromthe posterior portion of the waist portion. A first shoulder strap ispositionable to extend over a first shoulder of the user and isconnectable to both the first waist portion and the dorsal lumbarextension; and a second shoulder strap is positionable to extend over asecond shoulder of the user and is connectable to both the second waistportion and the dorsal lumbar extension.

A first cable is connectable to both the first waist portion and thefirst shoulder strap for tensioning the first waist portion and thefirst shoulder strap; and a second cable is connectable to both thesecond waist portion and the second shoulder strap for tensioning thesecond waist portion and the second shoulder strap.

The spinal brace includes a first cable tensioner operably associatedwith the first cable to adjust the tension the first cable, and a secondcable tensioner operably associated with the second cable to adjust thetension the second cable. Adjustment of the tension of the first cablesimultaneously adjusts the tension of the first waist portion of thebrace and the tension of the first shoulder strap, and adjustment of thetension of the second cable simultaneously adjusts the tension of thesecond waist portion of the brace and the tension of the second shoulderstrap.

BRIEF DESCRIPTION OF THE DRAWINGS

Further advantages of the disclosure are apparent by reference to thedetailed description when considered in conjunction with the figures,which are not to scale so as to more clearly show the details, whereinlike reference numbers indicate like elements throughout the severalviews, and wherein:

FIG. 1 is a front perspective view of a brace according to thedisclosure.

FIG. 2 is a front view of the brace of FIG. 1 installed on a user.

FIG. 3 is a rear perspective view of the brace of FIG. 1.

FIG. 4 a rear view of the brace of FIG. 1 installed on a user.

FIG. 5 is an exploded view of the brace of FIG. 1.

FIG. 6 shows a side member and a cable tensioning system of the brace ofFIG. 1.

FIG. 7 is a close-up view of a portion of the side member and cabletensioning system of the brace of FIG. 1.

FIG. 8 shows the side member and cable tensioning system of the brace ofFIG. 1 cooperating with a shoulder strap for tightening of the shoulderstrap.

FIG. 9 is a close-up view showing cooperation of the shoulder strap withtensioning system of the brace of FIG. 1.

DETAILED DESCRIPTION

The disclosure relates to a spinal orthosis 10 having a waist orabdominal portion 12, a dorsal lumbar insert 14, shoulder straps 16 and18 to promote extension, and one or more cable tensioning systems 20.The tensioning systems 20 enable a user to tighten or loosen the waistor abdominal portion 12 while at the same time tightening or looseningthe shoulder straps 16 and 18 to promote a desired adjustment of theextension.

The waist portion 12 may include a posterior portion 22, an anteriorportion 24, and side members 26 and 28, each made of a conformable andflexible material. The side members 26 and 28 each releasably andadjustably connect to the posterior member 22 and the anterior member 24as by mating hook and loop material to enable the formation of the waistportion 12 in a configuration that will snugly encircle the waist of auser. A D-ring 30 is desirably located at the anterior end of each ofthe side members 26 and 28 for tensioning the side members 26 and 28. Inthis regard, the exterior surfaces of the posterior portion 22 and theanterior portion 24 may be made of a soft loop material and the sidemembers 26 and 28 may have hook material at each end to releasablyengage the loop material. As used herein, the terms waist and abdominalare interchangeable. The modular configuration of the described waistportion 12 advantageously fits a wide range of patient sizes to cut downon inventory needs.

The posterior portion 22 includes a vertically extending pocket 30 forreceiving the dorsal lumbar insert 14. The anterior portion 24 includesa pocket 32 for receiving a rigid stay 34. The side members 26 and 28are made of a lightweight and flexible elastic fabric, with each havingone of the cable tensioning systems 20 located thereon as described morefully below.

The dorsal lumbar insert. 14 is preferably a rigid or semi-rigid butadjustable extension. A particularly preferred rigid but adjustableextension is an extension available under the trade name NOBLE HINGEfrom DeRoyal Industries, Inc. of Powell, Tenn.

The shoulder strap 16 is an elongate flexible strap having one endadjustably connected to the dorsal lumbar insert 14 and the other endconnectable to the cable tensioning system 20. For example, the endconnected to the insert 14 may have a hook material applied thereto withthe exterior of the strap 16 having a loop surface. The strap 16 may bepassed through a D-ring or other connector on the insert 14 andoverlapped to adjustably connect the strap 16 to the insert. Theopposite end of the strap 16 includes a strap cable guide 40 forreceiving a portion of a cable 42 of one of the cable tensioning systems20. The guide 40 is configured so as to enable the cable 42 to bereleasably engaged therewith, and may be provided as a hard plasticmaterial having a groove into which the cable 42 may be seated. Theshoulder strap 18 is substantially identical to the shoulder strap 16and cooperates with the lumbar insert 14 and the other of the cabletensioning systems 20 in the same manner. It will be understood thatwhile two separate straps are described, the straps may be provided asby a single length of material that serves to provide two straps thatadjustably position about the shoulders in the manner of the straps 16and 18.

In addition to the cable 42, the cable tensioning system 20 includescable tensioning structure that functions to adjust the tension of thecable 42, such as a cable take-up 44, a plurality of fixed cable guides46, and a releasable cable guide 48. The cable take-up 44 may beprovided as by a cable reel or other structure that enables tension tobe applied or removed from the cable 42. Suitable cable reel devices areavailable under the name BOA from Boa Technology, Inc. of Denver, Colo.,and described in U.S. Pat. Nos. 7,954,204 and 7,992,261, incorporated byreference in their entireties. The fixed guides 46 may be provided as bystrips of material sewn to the side members 26 and 28. The releasablecable guide 40 may be provided in the manner of the strap cable guide40, and provided by a hard plastic material secured to one of the sidemembers 26 and 28 and having a groove into which the cable 42 may beseated.

It will be appreciated that the brace 10 is configured with two of thetensioning systems 20. However, it will be understood that the brace 10may be constructed to utilize a single cable tensioning system. Further,it will be understood that devices and structures other than cable reelsmay be used for adjusting cable tension. For example, the cables may betensioned around fixed posts, be tensioned as by connection to a lengthof hook material that may be adjustably positioned to loop material ofthe brace, or by other structures that serve to enable adjustment of thetension and fixing of the tension of the cable as desired so that thetension supplied to the user by both the waist portion 12 and the straps16/18 are simultaneously adjusted.

The brace 10 is installed by installing the waist portion 12 onto thewaist of the user. For example, the anterior portion 24 is secured toone of the side members 26 or 28, and the posterior portion 22 issecured to one both the side members 26 and 28. The waist portion 12 isslipped around the waist of the user and the free one of the sidemembers 26 or 28 is secured to the anterior portion 24. The D-rings 30of each of the side members 26 and 28 may then be grasped, and the sidemembers 26 and 28 re-positioned to snugly secure the brace 10 around thewaist of the user. A single length of material may be used to providethe waist portion 12, with one or both of the tensioning systems 20being utilized to adjust the tension thereof. However, to avoid initialadjustment of the tension and to avoid undue bunching and the like, thedescribed structures are preferred.

Desired positioning of the brace 10 is to locate the anterior portion 24directly above the symphysis pubis of the user, and the posteriorportion 22 directly above the sacrococcygeal junction and extending tothe scapular spine. The extension 14 is adjusted to provide the desiredsupport, and the tension of the waist portion 12 about the waist of theuser may be adjusted by adjusting the cable take-up 44 of one or both ofthe side members 26 and 28, such as depicted in FIGS. 6 and 7.

At the initial fitting the shoulder straps 16 and 18 may be tensioned bygrasping them and pulling down and securing the free ends of the straps16/18 having the cable guides 40 thereon to the brace 10 as by matinghook and loop material. Thereafter the free ends of each of the straps16 and 18 being engaged by the cable tensioning systems 20 as byreleasing the cable 42 from the releasable cable guide 48 of the sidemember 26/28 and engaging the cable 42 with the strap cable guide 40 ofthe strap 16/18. Tension of the waist or abdominal portion 12 may thenbe adjusted using the tensioning systems 20 while at the same timetightening the shoulder straps 16 and 18 to encourage extension. In thisregard, it will be understood that adjustment of the tension may referto tightening or loosening, as may be indicated to provide a desiredfitment of the brace 10 to the user and effect on the user. Thus, theconstruction off the brace 10, with the adjustment of the straps toenables the brace 10 to be utilized to fit a wide variety of patientindications by adjusting the cable tensions.

For example, the end of the straps 16/18 having the cable guide 40thereon are secured to the side members 26/28 as by mating hook/loopmaterial. Thus, when the cables 42 are removed from the releasable cableguides 48 on the side members 26/28 and engaged with the strap cableguides 48 on the straps 16/18, adjustment of the cable tensioningsystems 20 will adjust the tension of the cables 42 and hencesimultaneously adjust both the tension of the waist portion 12 and thestraps 16/18.

The foregoing description of preferred embodiments for this disclosurehas been presented for purposes of illustration and description. It isnot intended to be exhaustive or to limit the disclosure to the preciseform disclosed. Obvious modifications or variations are possible inlight of the above teachings. The embodiments are chosen and describedin an effort to provide the best illustrations of the principles of thedisclosure and its practical application, and to thereby enable one ofordinary skill in the art to utilize the disclosure in variousembodiments and with various modifications as are suited to theparticular use contemplated. All such modifications and variations arewithin the scope of the disclosure as determined by the appended claimswhen interpreted in accordance with the breadth to which they arefairly, legally, and equitably entitled.

The invention claimed is:
 1. A spinal brace, comprising: a waist portion of the spinal brace adapted to be encircled and adjustably tensioned about a waist of a user; a dorsal lumbar extension extending from a rear portion of the waist portion; a shoulder strap positionable to extend over a shoulder of the user and connectable to the dorsal lumbar extension and releasably connectable to the waist portion; a tensionable cable connected to the waist portion for tensioning only the waist portion of the spinal brace when the cable is tensioned and selectively also connected directly to the shoulder strap for simultaneously tensioning both the waist portion of the spinal brace and the shoulder strap when the cable is tensioned and also directly connected to the shoulder strap; and a cable tensioner operably associated with the cable to tension the cable and adjust the tension of the cable, wherein adjustment of the tension of the cable tensions only the waist portion of the spinal brace when the cable is tensioned and connected only to the waist portion of the spinal brace and simultaneously adjusts the tension of the waist portion of the spinal brace and the tension of the shoulder strap when the cable is tensioned and also connected to the shoulder strap.
 2. A spinal brace, comprising: a waist portion of the spinal brace adapted to be encircled and adjustably tensioned about a waist of a user; a shoulder strap positionable to extend over a shoulder of the user and releasably connectable to the waist portion; a tensionable cable connected to the waist portion of the spinal brace for tensioning only the waist portion of the spinal brace when the cable is tensioned and selectively also connected directly to the shoulder strap for simultaneously tensioning both the waist portion of the spinal brace and the shoulder strap when the cable is tensioned and also connected to the shoulder strap; and a cable tensioner operably associated with the cable to tension the cable and adjust the tension of the cable, wherein adjustment of the tension of the cable tensions only the waist portion of the spinal brace when the cable is tensioned and connected only to the waist portion and simultaneously adjusts the tension of the waist portion of the spinal brace and the tension of the shoulder strap when the cable is tensioned and also connected to the shoulder strap. 